1/* 2 * linux/drivers/message/fusion/mptfc.c 3 * For use with LSI PCI chip/adapter(s) 4 * running LSI Fusion MPT (Message Passing Technology) firmware. 5 * 6 * Copyright (c) 1999-2008 LSI Corporation 7 * (mailto:DL-MPTFusionLinux@lsi.com) 8 * 9 */ 10/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 11/* 12 This program is free software; you can redistribute it and/or modify 13 it under the terms of the GNU General Public License as published by 14 the Free Software Foundation; version 2 of the License. 15 16 This program is distributed in the hope that it will be useful, 17 but WITHOUT ANY WARRANTY; without even the implied warranty of 18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 19 GNU General Public License for more details. 20 21 NO WARRANTY 22 THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR 23 CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT 24 LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT, 25 MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is 26 solely responsible for determining the appropriateness of using and 27 distributing the Program and assumes all risks associated with its 28 exercise of rights under this Agreement, including but not limited to 29 the risks and costs of program errors, damage to or loss of data, 30 programs or equipment, and unavailability or interruption of operations. 31 32 DISCLAIMER OF LIABILITY 33 NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY 34 DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 35 DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND 36 ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR 37 TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE 38 USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED 39 HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES 40 41 You should have received a copy of the GNU General Public License 42 along with this program; if not, write to the Free Software 43 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 44*/ 45/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 46#include <linux/module.h> 47#include <linux/kernel.h> 48#include <linux/init.h> 49#include <linux/errno.h> 50#include <linux/kdev_t.h> 51#include <linux/blkdev.h> 52#include <linux/delay.h> /* for mdelay */ 53#include <linux/interrupt.h> 54#include <linux/reboot.h> /* notifier code */ 55#include <linux/workqueue.h> 56#include <linux/sort.h> 57#include <linux/slab.h> 58 59#include <scsi/scsi.h> 60#include <scsi/scsi_cmnd.h> 61#include <scsi/scsi_device.h> 62#include <scsi/scsi_host.h> 63#include <scsi/scsi_tcq.h> 64#include <scsi/scsi_transport_fc.h> 65 66#include "mptbase.h" 67#include "mptscsih.h" 68 69/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 70#define my_NAME "Fusion MPT FC Host driver" 71#define my_VERSION MPT_LINUX_VERSION_COMMON 72#define MYNAM "mptfc" 73 74MODULE_AUTHOR(MODULEAUTHOR); 75MODULE_DESCRIPTION(my_NAME); 76MODULE_LICENSE("GPL"); 77MODULE_VERSION(my_VERSION); 78 79/* Command line args */ 80#define MPTFC_DEV_LOSS_TMO (60) 81static int mptfc_dev_loss_tmo = MPTFC_DEV_LOSS_TMO; /* reasonable default */ 82module_param(mptfc_dev_loss_tmo, int, 0); 83MODULE_PARM_DESC(mptfc_dev_loss_tmo, " Initial time the driver programs the " 84 " transport to wait for an rport to " 85 " return following a device loss event." 86 " Default=60."); 87 88/* scsi-mid layer global parmeter is max_report_luns, which is 511 */ 89#define MPTFC_MAX_LUN (16895) 90static int max_lun = MPTFC_MAX_LUN; 91module_param(max_lun, int, 0); 92MODULE_PARM_DESC(max_lun, " max lun, default=16895 "); 93 94static u8 mptfcDoneCtx = MPT_MAX_PROTOCOL_DRIVERS; 95static u8 mptfcTaskCtx = MPT_MAX_PROTOCOL_DRIVERS; 96static u8 mptfcInternalCtx = MPT_MAX_PROTOCOL_DRIVERS; 97 98static int mptfc_target_alloc(struct scsi_target *starget); 99static int mptfc_slave_alloc(struct scsi_device *sdev); 100static int mptfc_qcmd(struct Scsi_Host *shost, struct scsi_cmnd *SCpnt); 101static void mptfc_target_destroy(struct scsi_target *starget); 102static void mptfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout); 103static void mptfc_remove(struct pci_dev *pdev); 104static int mptfc_abort(struct scsi_cmnd *SCpnt); 105static int mptfc_dev_reset(struct scsi_cmnd *SCpnt); 106static int mptfc_bus_reset(struct scsi_cmnd *SCpnt); 107 108static const struct scsi_host_template mptfc_driver_template = { 109 .module = THIS_MODULE, 110 .proc_name = "mptfc", 111 .show_info = mptscsih_show_info, 112 .name = "MPT FC Host", 113 .info = mptscsih_info, 114 .queuecommand = mptfc_qcmd, 115 .target_alloc = mptfc_target_alloc, 116 .slave_alloc = mptfc_slave_alloc, 117 .slave_configure = mptscsih_slave_configure, 118 .target_destroy = mptfc_target_destroy, 119 .slave_destroy = mptscsih_slave_destroy, 120 .change_queue_depth = mptscsih_change_queue_depth, 121 .eh_timed_out = fc_eh_timed_out, 122 .eh_abort_handler = mptfc_abort, 123 .eh_device_reset_handler = mptfc_dev_reset, 124 .eh_bus_reset_handler = mptfc_bus_reset, 125 .eh_host_reset_handler = mptscsih_host_reset, 126 .bios_param = mptscsih_bios_param, 127 .can_queue = MPT_FC_CAN_QUEUE, 128 .this_id = -1, 129 .sg_tablesize = MPT_SCSI_SG_DEPTH, 130 .max_sectors = 8192, 131 .cmd_per_lun = 7, 132 .shost_groups = mptscsih_host_attr_groups, 133}; 134 135/**************************************************************************** 136 * Supported hardware 137 */ 138 139static struct pci_device_id mptfc_pci_table[] = { 140 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC909, 141 PCI_ANY_ID, PCI_ANY_ID }, 142 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC919, 143 PCI_ANY_ID, PCI_ANY_ID }, 144 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC929, 145 PCI_ANY_ID, PCI_ANY_ID }, 146 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC919X, 147 PCI_ANY_ID, PCI_ANY_ID }, 148 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC929X, 149 PCI_ANY_ID, PCI_ANY_ID }, 150 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC939X, 151 PCI_ANY_ID, PCI_ANY_ID }, 152 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC949X, 153 PCI_ANY_ID, PCI_ANY_ID }, 154 { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVICEID_FC949E, 155 PCI_ANY_ID, PCI_ANY_ID }, 156 { PCI_VENDOR_ID_BROCADE, MPI_MANUFACTPAGE_DEVICEID_FC949E, 157 PCI_ANY_ID, PCI_ANY_ID }, 158 {0} /* Terminating entry */ 159}; 160MODULE_DEVICE_TABLE(pci, mptfc_pci_table); 161 162static struct scsi_transport_template *mptfc_transport_template = NULL; 163 164static struct fc_function_template mptfc_transport_functions = { 165 .dd_fcrport_size = 8, 166 .show_host_node_name = 1, 167 .show_host_port_name = 1, 168 .show_host_supported_classes = 1, 169 .show_host_port_id = 1, 170 .show_rport_supported_classes = 1, 171 .show_starget_node_name = 1, 172 .show_starget_port_name = 1, 173 .show_starget_port_id = 1, 174 .set_rport_dev_loss_tmo = mptfc_set_rport_loss_tmo, 175 .show_rport_dev_loss_tmo = 1, 176 .show_host_supported_speeds = 1, 177 .show_host_maxframe_size = 1, 178 .show_host_speed = 1, 179 .show_host_fabric_name = 1, 180 .show_host_port_type = 1, 181 .show_host_port_state = 1, 182 .show_host_symbolic_name = 1, 183}; 184 185static int 186mptfc_block_error_handler(struct fc_rport *rport) 187{ 188 MPT_SCSI_HOST *hd; 189 struct Scsi_Host *shost = rport_to_shost(rport); 190 unsigned long flags; 191 int ready; 192 MPT_ADAPTER *ioc; 193 int loops = 40; /* seconds */ 194 195 hd = shost_priv(shost); 196 ioc = hd->ioc; 197 spin_lock_irqsave(shost->host_lock, flags); 198 while ((ready = fc_remote_port_chkready(rport) >> 16) == DID_IMM_RETRY 199 || (loops > 0 && ioc->active == 0)) { 200 spin_unlock_irqrestore(shost->host_lock, flags); 201 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT 202 "mptfc_block_error_handler.%d: %s, port status is " 203 "%x, active flag %d, deferring recovery.\n", 204 ioc->name, ioc->sh->host_no, 205 dev_name(&rport->dev), ready, ioc->active)); 206 msleep(1000); 207 spin_lock_irqsave(shost->host_lock, flags); 208 loops --; 209 } 210 spin_unlock_irqrestore(shost->host_lock, flags); 211 212 if (ready == DID_NO_CONNECT || ioc->active == 0) { 213 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT 214 "mpt_block_error_handler.%d: %s, failing recovery, " 215 "port state %x, active %d.\n", 216 ioc->name, ioc->sh->host_no, 217 dev_name(&rport->dev), ready, ioc->active)); 218 return FAILED; 219 } 220 return SUCCESS; 221} 222 223static int 224mptfc_abort(struct scsi_cmnd *SCpnt) 225{ 226 struct Scsi_Host *shost = SCpnt->device->host; 227 struct fc_rport *rport = starget_to_rport(scsi_target(SCpnt->device)); 228 MPT_SCSI_HOST __maybe_unused *hd = shost_priv(shost); 229 int rtn; 230 231 rtn = mptfc_block_error_handler(rport); 232 if (rtn == SUCCESS) { 233 dfcprintk (hd->ioc, printk(MYIOC_s_DEBUG_FMT 234 "%s.%d: %d:%llu, executing recovery.\n", __func__, 235 hd->ioc->name, shost->host_no, 236 SCpnt->device->id, SCpnt->device->lun)); 237 rtn = mptscsih_abort(SCpnt); 238 } 239 return rtn; 240} 241 242static int 243mptfc_dev_reset(struct scsi_cmnd *SCpnt) 244{ 245 struct Scsi_Host *shost = SCpnt->device->host; 246 struct fc_rport *rport = starget_to_rport(scsi_target(SCpnt->device)); 247 MPT_SCSI_HOST __maybe_unused *hd = shost_priv(shost); 248 int rtn; 249 250 rtn = mptfc_block_error_handler(rport); 251 if (rtn == SUCCESS) { 252 dfcprintk (hd->ioc, printk(MYIOC_s_DEBUG_FMT 253 "%s.%d: %d:%llu, executing recovery.\n", __func__, 254 hd->ioc->name, shost->host_no, 255 SCpnt->device->id, SCpnt->device->lun)); 256 rtn = mptscsih_dev_reset(SCpnt); 257 } 258 return rtn; 259} 260 261static int 262mptfc_bus_reset(struct scsi_cmnd *SCpnt) 263{ 264 struct Scsi_Host *shost = SCpnt->device->host; 265 MPT_SCSI_HOST __maybe_unused *hd = shost_priv(shost); 266 int channel = SCpnt->device->channel; 267 struct mptfc_rport_info *ri; 268 int rtn = FAILED; 269 270 list_for_each_entry(ri, &hd->ioc->fc_rports, list) { 271 if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) { 272 VirtTarget *vtarget = ri->starget->hostdata; 273 274 if (!vtarget || vtarget->channel != channel) 275 continue; 276 rtn = fc_block_rport(ri->rport); 277 if (rtn != 0) 278 break; 279 } 280 } 281 if (rtn == 0) { 282 dfcprintk (hd->ioc, printk(MYIOC_s_DEBUG_FMT 283 "%s.%d: %d:%llu, executing recovery.\n", __func__, 284 hd->ioc->name, shost->host_no, 285 SCpnt->device->id, SCpnt->device->lun)); 286 rtn = mptscsih_bus_reset(SCpnt); 287 } 288 return rtn; 289} 290 291static void 292mptfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout) 293{ 294 if (timeout > 0) 295 rport->dev_loss_tmo = timeout; 296 else 297 rport->dev_loss_tmo = mptfc_dev_loss_tmo; 298} 299 300static int 301mptfc_FcDevPage0_cmp_func(const void *a, const void *b) 302{ 303 FCDevicePage0_t **aa = (FCDevicePage0_t **)a; 304 FCDevicePage0_t **bb = (FCDevicePage0_t **)b; 305 306 if ((*aa)->CurrentBus == (*bb)->CurrentBus) { 307 if ((*aa)->CurrentTargetID == (*bb)->CurrentTargetID) 308 return 0; 309 if ((*aa)->CurrentTargetID < (*bb)->CurrentTargetID) 310 return -1; 311 return 1; 312 } 313 if ((*aa)->CurrentBus < (*bb)->CurrentBus) 314 return -1; 315 return 1; 316} 317 318static int 319mptfc_GetFcDevPage0(MPT_ADAPTER *ioc, int ioc_port, 320 void(*func)(MPT_ADAPTER *ioc,int channel, FCDevicePage0_t *arg)) 321{ 322 ConfigPageHeader_t hdr; 323 CONFIGPARMS cfg; 324 FCDevicePage0_t *ppage0_alloc, *fc; 325 dma_addr_t page0_dma; 326 int data_sz; 327 int ii; 328 329 FCDevicePage0_t *p0_array=NULL, *p_p0; 330 FCDevicePage0_t **pp0_array=NULL, **p_pp0; 331 332 int rc = -ENOMEM; 333 U32 port_id = 0xffffff; 334 int num_targ = 0; 335 int max_bus = ioc->facts.MaxBuses; 336 int max_targ; 337 338 max_targ = (ioc->facts.MaxDevices == 0) ? 256 : ioc->facts.MaxDevices; 339 340 data_sz = sizeof(FCDevicePage0_t) * max_bus * max_targ; 341 p_p0 = p0_array = kzalloc(data_sz, GFP_KERNEL); 342 if (!p0_array) 343 goto out; 344 345 data_sz = sizeof(FCDevicePage0_t *) * max_bus * max_targ; 346 p_pp0 = pp0_array = kzalloc(data_sz, GFP_KERNEL); 347 if (!pp0_array) 348 goto out; 349 350 do { 351 /* Get FC Device Page 0 header */ 352 hdr.PageVersion = 0; 353 hdr.PageLength = 0; 354 hdr.PageNumber = 0; 355 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_DEVICE; 356 cfg.cfghdr.hdr = &hdr; 357 cfg.physAddr = -1; 358 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER; 359 cfg.dir = 0; 360 cfg.pageAddr = port_id; 361 cfg.timeout = 0; 362 363 if ((rc = mpt_config(ioc, &cfg)) != 0) 364 break; 365 366 if (hdr.PageLength <= 0) 367 break; 368 369 data_sz = hdr.PageLength * 4; 370 ppage0_alloc = dma_alloc_coherent(&ioc->pcidev->dev, data_sz, 371 &page0_dma, GFP_KERNEL); 372 rc = -ENOMEM; 373 if (!ppage0_alloc) 374 break; 375 376 cfg.physAddr = page0_dma; 377 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT; 378 379 if ((rc = mpt_config(ioc, &cfg)) == 0) { 380 ppage0_alloc->PortIdentifier = 381 le32_to_cpu(ppage0_alloc->PortIdentifier); 382 383 ppage0_alloc->WWNN.Low = 384 le32_to_cpu(ppage0_alloc->WWNN.Low); 385 386 ppage0_alloc->WWNN.High = 387 le32_to_cpu(ppage0_alloc->WWNN.High); 388 389 ppage0_alloc->WWPN.Low = 390 le32_to_cpu(ppage0_alloc->WWPN.Low); 391 392 ppage0_alloc->WWPN.High = 393 le32_to_cpu(ppage0_alloc->WWPN.High); 394 395 ppage0_alloc->BBCredit = 396 le16_to_cpu(ppage0_alloc->BBCredit); 397 398 ppage0_alloc->MaxRxFrameSize = 399 le16_to_cpu(ppage0_alloc->MaxRxFrameSize); 400 401 port_id = ppage0_alloc->PortIdentifier; 402 num_targ++; 403 *p_p0 = *ppage0_alloc; /* save data */ 404 *p_pp0++ = p_p0++; /* save addr */ 405 } 406 dma_free_coherent(&ioc->pcidev->dev, data_sz, 407 ppage0_alloc, page0_dma); 408 if (rc != 0) 409 break; 410 411 } while (port_id <= 0xff0000); 412 413 if (num_targ) { 414 /* sort array */ 415 if (num_targ > 1) 416 sort (pp0_array, num_targ, sizeof(FCDevicePage0_t *), 417 mptfc_FcDevPage0_cmp_func, NULL); 418 /* call caller's func for each targ */ 419 for (ii = 0; ii < num_targ; ii++) { 420 fc = *(pp0_array+ii); 421 func(ioc, ioc_port, fc); 422 } 423 } 424 425 out: 426 kfree(pp0_array); 427 kfree(p0_array); 428 return rc; 429} 430 431static int 432mptfc_generate_rport_ids(FCDevicePage0_t *pg0, struct fc_rport_identifiers *rid) 433{ 434 /* not currently usable */ 435 if (pg0->Flags & (MPI_FC_DEVICE_PAGE0_FLAGS_PLOGI_INVALID | 436 MPI_FC_DEVICE_PAGE0_FLAGS_PRLI_INVALID)) 437 return -1; 438 439 if (!(pg0->Flags & MPI_FC_DEVICE_PAGE0_FLAGS_TARGETID_BUS_VALID)) 440 return -1; 441 442 if (!(pg0->Protocol & MPI_FC_DEVICE_PAGE0_PROT_FCP_TARGET)) 443 return -1; 444 445 /* 446 * board data structure already normalized to platform endianness 447 * shifted to avoid unaligned access on 64 bit architecture 448 */ 449 rid->node_name = ((u64)pg0->WWNN.High) << 32 | (u64)pg0->WWNN.Low; 450 rid->port_name = ((u64)pg0->WWPN.High) << 32 | (u64)pg0->WWPN.Low; 451 rid->port_id = pg0->PortIdentifier; 452 rid->roles = FC_RPORT_ROLE_UNKNOWN; 453 454 return 0; 455} 456 457static void 458mptfc_register_dev(MPT_ADAPTER *ioc, int channel, FCDevicePage0_t *pg0) 459{ 460 struct fc_rport_identifiers rport_ids; 461 struct fc_rport *rport; 462 struct mptfc_rport_info *ri; 463 int new_ri = 1; 464 u64 pn, nn; 465 VirtTarget *vtarget; 466 u32 roles = FC_RPORT_ROLE_UNKNOWN; 467 468 if (mptfc_generate_rport_ids(pg0, &rport_ids) < 0) 469 return; 470 471 roles |= FC_RPORT_ROLE_FCP_TARGET; 472 if (pg0->Protocol & MPI_FC_DEVICE_PAGE0_PROT_FCP_INITIATOR) 473 roles |= FC_RPORT_ROLE_FCP_INITIATOR; 474 475 /* scan list looking for a match */ 476 list_for_each_entry(ri, &ioc->fc_rports, list) { 477 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low; 478 if (pn == rport_ids.port_name) { /* match */ 479 list_move_tail(&ri->list, &ioc->fc_rports); 480 new_ri = 0; 481 break; 482 } 483 } 484 if (new_ri) { /* allocate one */ 485 ri = kzalloc(sizeof(struct mptfc_rport_info), GFP_KERNEL); 486 if (!ri) 487 return; 488 list_add_tail(&ri->list, &ioc->fc_rports); 489 } 490 491 ri->pg0 = *pg0; /* add/update pg0 data */ 492 ri->flags &= ~MPT_RPORT_INFO_FLAGS_MISSING; 493 494 /* MPT_RPORT_INFO_FLAGS_REGISTERED - rport not previously deleted */ 495 if (!(ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED)) { 496 ri->flags |= MPT_RPORT_INFO_FLAGS_REGISTERED; 497 rport = fc_remote_port_add(ioc->sh, channel, &rport_ids); 498 if (rport) { 499 ri->rport = rport; 500 if (new_ri) /* may have been reset by user */ 501 rport->dev_loss_tmo = mptfc_dev_loss_tmo; 502 /* 503 * if already mapped, remap here. If not mapped, 504 * target_alloc will allocate vtarget and map, 505 * slave_alloc will fill in vdevice from vtarget. 506 */ 507 if (ri->starget) { 508 vtarget = ri->starget->hostdata; 509 if (vtarget) { 510 vtarget->id = pg0->CurrentTargetID; 511 vtarget->channel = pg0->CurrentBus; 512 vtarget->deleted = 0; 513 } 514 } 515 *((struct mptfc_rport_info **)rport->dd_data) = ri; 516 /* scan will be scheduled once rport becomes a target */ 517 fc_remote_port_rolechg(rport,roles); 518 519 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low; 520 nn = (u64)ri->pg0.WWNN.High << 32 | (u64)ri->pg0.WWNN.Low; 521 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT 522 "mptfc_reg_dev.%d: %x, %llx / %llx, tid %d, " 523 "rport tid %d, tmo %d\n", 524 ioc->name, 525 ioc->sh->host_no, 526 pg0->PortIdentifier, 527 (unsigned long long)nn, 528 (unsigned long long)pn, 529 pg0->CurrentTargetID, 530 ri->rport->scsi_target_id, 531 ri->rport->dev_loss_tmo)); 532 } else { 533 list_del(&ri->list); 534 kfree(ri); 535 ri = NULL; 536 } 537 } 538} 539 540/* 541 * OS entry point to allow for host driver to free allocated memory 542 * Called if no device present or device being unloaded 543 */ 544static void 545mptfc_target_destroy(struct scsi_target *starget) 546{ 547 struct fc_rport *rport; 548 struct mptfc_rport_info *ri; 549 550 rport = starget_to_rport(starget); 551 if (rport) { 552 ri = *((struct mptfc_rport_info **)rport->dd_data); 553 if (ri) /* better be! */ 554 ri->starget = NULL; 555 } 556 kfree(starget->hostdata); 557 starget->hostdata = NULL; 558} 559 560/* 561 * OS entry point to allow host driver to alloc memory 562 * for each scsi target. Called once per device the bus scan. 563 * Return non-zero if allocation fails. 564 */ 565static int 566mptfc_target_alloc(struct scsi_target *starget) 567{ 568 VirtTarget *vtarget; 569 struct fc_rport *rport; 570 struct mptfc_rport_info *ri; 571 int rc; 572 573 vtarget = kzalloc(sizeof(VirtTarget), GFP_KERNEL); 574 if (!vtarget) 575 return -ENOMEM; 576 starget->hostdata = vtarget; 577 578 rc = -ENODEV; 579 rport = starget_to_rport(starget); 580 if (rport) { 581 ri = *((struct mptfc_rport_info **)rport->dd_data); 582 if (ri) { /* better be! */ 583 vtarget->id = ri->pg0.CurrentTargetID; 584 vtarget->channel = ri->pg0.CurrentBus; 585 ri->starget = starget; 586 rc = 0; 587 } 588 } 589 if (rc != 0) { 590 kfree(vtarget); 591 starget->hostdata = NULL; 592 } 593 594 return rc; 595} 596/* 597 * mptfc_dump_lun_info 598 * @ioc 599 * @rport 600 * @sdev 601 * 602 */ 603static void 604mptfc_dump_lun_info(MPT_ADAPTER *ioc, struct fc_rport *rport, struct scsi_device *sdev, 605 VirtTarget *vtarget) 606{ 607 u64 nn, pn; 608 struct mptfc_rport_info *ri; 609 610 ri = *((struct mptfc_rport_info **)rport->dd_data); 611 pn = (u64)ri->pg0.WWPN.High << 32 | (u64)ri->pg0.WWPN.Low; 612 nn = (u64)ri->pg0.WWNN.High << 32 | (u64)ri->pg0.WWNN.Low; 613 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT 614 "mptfc_slv_alloc.%d: num_luns %d, sdev.id %d, " 615 "CurrentTargetID %d, %x %llx %llx\n", 616 ioc->name, 617 sdev->host->host_no, 618 vtarget->num_luns, 619 sdev->id, ri->pg0.CurrentTargetID, 620 ri->pg0.PortIdentifier, 621 (unsigned long long)pn, 622 (unsigned long long)nn)); 623} 624 625 626/* 627 * OS entry point to allow host driver to alloc memory 628 * for each scsi device. Called once per device the bus scan. 629 * Return non-zero if allocation fails. 630 * Init memory once per LUN. 631 */ 632static int 633mptfc_slave_alloc(struct scsi_device *sdev) 634{ 635 MPT_SCSI_HOST *hd; 636 VirtTarget *vtarget; 637 VirtDevice *vdevice; 638 struct scsi_target *starget; 639 struct fc_rport *rport; 640 MPT_ADAPTER *ioc; 641 642 starget = scsi_target(sdev); 643 rport = starget_to_rport(starget); 644 645 if (!rport || fc_remote_port_chkready(rport)) 646 return -ENXIO; 647 648 hd = shost_priv(sdev->host); 649 ioc = hd->ioc; 650 651 vdevice = kzalloc(sizeof(VirtDevice), GFP_KERNEL); 652 if (!vdevice) { 653 printk(MYIOC_s_ERR_FMT "slave_alloc kmalloc(%zd) FAILED!\n", 654 ioc->name, sizeof(VirtDevice)); 655 return -ENOMEM; 656 } 657 658 659 sdev->hostdata = vdevice; 660 vtarget = starget->hostdata; 661 662 if (vtarget->num_luns == 0) { 663 vtarget->ioc_id = ioc->id; 664 vtarget->tflags = MPT_TARGET_FLAGS_Q_YES; 665 } 666 667 vdevice->vtarget = vtarget; 668 vdevice->lun = sdev->lun; 669 670 vtarget->num_luns++; 671 672 673 mptfc_dump_lun_info(ioc, rport, sdev, vtarget); 674 675 return 0; 676} 677 678static int 679mptfc_qcmd(struct Scsi_Host *shost, struct scsi_cmnd *SCpnt) 680{ 681 struct mptfc_rport_info *ri; 682 struct fc_rport *rport = starget_to_rport(scsi_target(SCpnt->device)); 683 int err; 684 VirtDevice *vdevice = SCpnt->device->hostdata; 685 686 if (!vdevice || !vdevice->vtarget) { 687 SCpnt->result = DID_NO_CONNECT << 16; 688 scsi_done(SCpnt); 689 return 0; 690 } 691 692 err = fc_remote_port_chkready(rport); 693 if (unlikely(err)) { 694 SCpnt->result = err; 695 scsi_done(SCpnt); 696 return 0; 697 } 698 699 /* dd_data is null until finished adding target */ 700 ri = *((struct mptfc_rport_info **)rport->dd_data); 701 if (unlikely(!ri)) { 702 SCpnt->result = DID_IMM_RETRY << 16; 703 scsi_done(SCpnt); 704 return 0; 705 } 706 707 return mptscsih_qcmd(SCpnt); 708} 709 710/* 711 * mptfc_display_port_link_speed - displaying link speed 712 * @ioc: Pointer to MPT_ADAPTER structure 713 * @portnum: IOC Port number 714 * @pp0dest: port page0 data payload 715 * 716 */ 717static void 718mptfc_display_port_link_speed(MPT_ADAPTER *ioc, int portnum, FCPortPage0_t *pp0dest) 719{ 720 u8 old_speed, new_speed, state; 721 char *old, *new; 722 723 if (portnum >= 2) 724 return; 725 726 old_speed = ioc->fc_link_speed[portnum]; 727 new_speed = pp0dest->CurrentSpeed; 728 state = pp0dest->PortState; 729 730 if (state != MPI_FCPORTPAGE0_PORTSTATE_OFFLINE && 731 new_speed != MPI_FCPORTPAGE0_CURRENT_SPEED_UNKNOWN) { 732 733 old = old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT ? "1 Gbps" : 734 old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT ? "2 Gbps" : 735 old_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT ? "4 Gbps" : 736 "Unknown"; 737 new = new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT ? "1 Gbps" : 738 new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT ? "2 Gbps" : 739 new_speed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT ? "4 Gbps" : 740 "Unknown"; 741 if (old_speed == 0) 742 printk(MYIOC_s_NOTE_FMT 743 "FC Link Established, Speed = %s\n", 744 ioc->name, new); 745 else if (old_speed != new_speed) 746 printk(MYIOC_s_WARN_FMT 747 "FC Link Speed Change, Old Speed = %s, New Speed = %s\n", 748 ioc->name, old, new); 749 750 ioc->fc_link_speed[portnum] = new_speed; 751 } 752} 753 754/* 755 * mptfc_GetFcPortPage0 - Fetch FCPort config Page0. 756 * @ioc: Pointer to MPT_ADAPTER structure 757 * @portnum: IOC Port number 758 * 759 * Return: 0 for success 760 * -ENOMEM if no memory available 761 * -EPERM if not allowed due to ISR context 762 * -EAGAIN if no msg frames currently available 763 * -EFAULT for non-successful reply or no reply (timeout) 764 * -EINVAL portnum arg out of range (hardwired to two elements) 765 */ 766static int 767mptfc_GetFcPortPage0(MPT_ADAPTER *ioc, int portnum) 768{ 769 ConfigPageHeader_t hdr; 770 CONFIGPARMS cfg; 771 FCPortPage0_t *ppage0_alloc; 772 FCPortPage0_t *pp0dest; 773 dma_addr_t page0_dma; 774 int data_sz; 775 int copy_sz; 776 int rc; 777 int count = 400; 778 779 if (portnum > 1) 780 return -EINVAL; 781 782 /* Get FCPort Page 0 header */ 783 hdr.PageVersion = 0; 784 hdr.PageLength = 0; 785 hdr.PageNumber = 0; 786 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT; 787 cfg.cfghdr.hdr = &hdr; 788 cfg.physAddr = -1; 789 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER; 790 cfg.dir = 0; 791 cfg.pageAddr = portnum; 792 cfg.timeout = 0; 793 794 if ((rc = mpt_config(ioc, &cfg)) != 0) 795 return rc; 796 797 if (hdr.PageLength == 0) 798 return 0; 799 800 data_sz = hdr.PageLength * 4; 801 rc = -ENOMEM; 802 ppage0_alloc = dma_alloc_coherent(&ioc->pcidev->dev, data_sz, 803 &page0_dma, GFP_KERNEL); 804 if (ppage0_alloc) { 805 806 try_again: 807 memset((u8 *)ppage0_alloc, 0, data_sz); 808 cfg.physAddr = page0_dma; 809 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT; 810 811 if ((rc = mpt_config(ioc, &cfg)) == 0) { 812 /* save the data */ 813 pp0dest = &ioc->fc_port_page0[portnum]; 814 copy_sz = min_t(int, sizeof(FCPortPage0_t), data_sz); 815 memcpy(pp0dest, ppage0_alloc, copy_sz); 816 817 /* 818 * Normalize endianness of structure data, 819 * by byte-swapping all > 1 byte fields! 820 */ 821 pp0dest->Flags = le32_to_cpu(pp0dest->Flags); 822 pp0dest->PortIdentifier = le32_to_cpu(pp0dest->PortIdentifier); 823 pp0dest->WWNN.Low = le32_to_cpu(pp0dest->WWNN.Low); 824 pp0dest->WWNN.High = le32_to_cpu(pp0dest->WWNN.High); 825 pp0dest->WWPN.Low = le32_to_cpu(pp0dest->WWPN.Low); 826 pp0dest->WWPN.High = le32_to_cpu(pp0dest->WWPN.High); 827 pp0dest->SupportedServiceClass = le32_to_cpu(pp0dest->SupportedServiceClass); 828 pp0dest->SupportedSpeeds = le32_to_cpu(pp0dest->SupportedSpeeds); 829 pp0dest->CurrentSpeed = le32_to_cpu(pp0dest->CurrentSpeed); 830 pp0dest->MaxFrameSize = le32_to_cpu(pp0dest->MaxFrameSize); 831 pp0dest->FabricWWNN.Low = le32_to_cpu(pp0dest->FabricWWNN.Low); 832 pp0dest->FabricWWNN.High = le32_to_cpu(pp0dest->FabricWWNN.High); 833 pp0dest->FabricWWPN.Low = le32_to_cpu(pp0dest->FabricWWPN.Low); 834 pp0dest->FabricWWPN.High = le32_to_cpu(pp0dest->FabricWWPN.High); 835 pp0dest->DiscoveredPortsCount = le32_to_cpu(pp0dest->DiscoveredPortsCount); 836 pp0dest->MaxInitiators = le32_to_cpu(pp0dest->MaxInitiators); 837 838 /* 839 * if still doing discovery, 840 * hang loose a while until finished 841 */ 842 if ((pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_UNKNOWN) || 843 (pp0dest->PortState == MPI_FCPORTPAGE0_PORTSTATE_ONLINE && 844 (pp0dest->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_TYPE_MASK) 845 == MPI_FCPORTPAGE0_FLAGS_ATTACH_NO_INIT)) { 846 if (count-- > 0) { 847 msleep(100); 848 goto try_again; 849 } 850 printk(MYIOC_s_INFO_FMT "Firmware discovery not" 851 " complete.\n", 852 ioc->name); 853 } 854 mptfc_display_port_link_speed(ioc, portnum, pp0dest); 855 } 856 857 dma_free_coherent(&ioc->pcidev->dev, data_sz, ppage0_alloc, 858 page0_dma); 859 } 860 861 return rc; 862} 863 864static int 865mptfc_WriteFcPortPage1(MPT_ADAPTER *ioc, int portnum) 866{ 867 ConfigPageHeader_t hdr; 868 CONFIGPARMS cfg; 869 int rc; 870 871 if (portnum > 1) 872 return -EINVAL; 873 874 if (!(ioc->fc_data.fc_port_page1[portnum].data)) 875 return -EINVAL; 876 877 /* get fcport page 1 header */ 878 hdr.PageVersion = 0; 879 hdr.PageLength = 0; 880 hdr.PageNumber = 1; 881 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT; 882 cfg.cfghdr.hdr = &hdr; 883 cfg.physAddr = -1; 884 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER; 885 cfg.dir = 0; 886 cfg.pageAddr = portnum; 887 cfg.timeout = 0; 888 889 if ((rc = mpt_config(ioc, &cfg)) != 0) 890 return rc; 891 892 if (hdr.PageLength == 0) 893 return -ENODEV; 894 895 if (hdr.PageLength*4 != ioc->fc_data.fc_port_page1[portnum].pg_sz) 896 return -EINVAL; 897 898 cfg.physAddr = ioc->fc_data.fc_port_page1[portnum].dma; 899 cfg.action = MPI_CONFIG_ACTION_PAGE_WRITE_CURRENT; 900 cfg.dir = 1; 901 902 rc = mpt_config(ioc, &cfg); 903 904 return rc; 905} 906 907static int 908mptfc_GetFcPortPage1(MPT_ADAPTER *ioc, int portnum) 909{ 910 ConfigPageHeader_t hdr; 911 CONFIGPARMS cfg; 912 FCPortPage1_t *page1_alloc; 913 dma_addr_t page1_dma; 914 int data_sz; 915 int rc; 916 917 if (portnum > 1) 918 return -EINVAL; 919 920 /* get fcport page 1 header */ 921 hdr.PageVersion = 0; 922 hdr.PageLength = 0; 923 hdr.PageNumber = 1; 924 hdr.PageType = MPI_CONFIG_PAGETYPE_FC_PORT; 925 cfg.cfghdr.hdr = &hdr; 926 cfg.physAddr = -1; 927 cfg.action = MPI_CONFIG_ACTION_PAGE_HEADER; 928 cfg.dir = 0; 929 cfg.pageAddr = portnum; 930 cfg.timeout = 0; 931 932 if ((rc = mpt_config(ioc, &cfg)) != 0) 933 return rc; 934 935 if (hdr.PageLength == 0) 936 return -ENODEV; 937 938start_over: 939 940 if (ioc->fc_data.fc_port_page1[portnum].data == NULL) { 941 data_sz = hdr.PageLength * 4; 942 if (data_sz < sizeof(FCPortPage1_t)) 943 data_sz = sizeof(FCPortPage1_t); 944 945 page1_alloc = dma_alloc_coherent(&ioc->pcidev->dev, data_sz, 946 &page1_dma, GFP_KERNEL); 947 if (!page1_alloc) 948 return -ENOMEM; 949 } 950 else { 951 page1_alloc = ioc->fc_data.fc_port_page1[portnum].data; 952 page1_dma = ioc->fc_data.fc_port_page1[portnum].dma; 953 data_sz = ioc->fc_data.fc_port_page1[portnum].pg_sz; 954 if (hdr.PageLength * 4 > data_sz) { 955 ioc->fc_data.fc_port_page1[portnum].data = NULL; 956 dma_free_coherent(&ioc->pcidev->dev, data_sz, 957 page1_alloc, page1_dma); 958 goto start_over; 959 } 960 } 961 962 cfg.physAddr = page1_dma; 963 cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT; 964 965 if ((rc = mpt_config(ioc, &cfg)) == 0) { 966 ioc->fc_data.fc_port_page1[portnum].data = page1_alloc; 967 ioc->fc_data.fc_port_page1[portnum].pg_sz = data_sz; 968 ioc->fc_data.fc_port_page1[portnum].dma = page1_dma; 969 } 970 else { 971 ioc->fc_data.fc_port_page1[portnum].data = NULL; 972 dma_free_coherent(&ioc->pcidev->dev, data_sz, page1_alloc, 973 page1_dma); 974 } 975 976 return rc; 977} 978 979static void 980mptfc_SetFcPortPage1_defaults(MPT_ADAPTER *ioc) 981{ 982 int ii; 983 FCPortPage1_t *pp1; 984 985 #define MPTFC_FW_DEVICE_TIMEOUT (1) 986 #define MPTFC_FW_IO_PEND_TIMEOUT (1) 987 #define ON_FLAGS (MPI_FCPORTPAGE1_FLAGS_IMMEDIATE_ERROR_REPLY) 988 #define OFF_FLAGS (MPI_FCPORTPAGE1_FLAGS_VERBOSE_RESCAN_EVENTS) 989 990 for (ii=0; ii<ioc->facts.NumberOfPorts; ii++) { 991 if (mptfc_GetFcPortPage1(ioc, ii) != 0) 992 continue; 993 pp1 = ioc->fc_data.fc_port_page1[ii].data; 994 if ((pp1->InitiatorDeviceTimeout == MPTFC_FW_DEVICE_TIMEOUT) 995 && (pp1->InitiatorIoPendTimeout == MPTFC_FW_IO_PEND_TIMEOUT) 996 && ((pp1->Flags & ON_FLAGS) == ON_FLAGS) 997 && ((pp1->Flags & OFF_FLAGS) == 0)) 998 continue; 999 pp1->InitiatorDeviceTimeout = MPTFC_FW_DEVICE_TIMEOUT; 1000 pp1->InitiatorIoPendTimeout = MPTFC_FW_IO_PEND_TIMEOUT; 1001 pp1->Flags &= ~OFF_FLAGS; 1002 pp1->Flags |= ON_FLAGS; 1003 mptfc_WriteFcPortPage1(ioc, ii); 1004 } 1005} 1006 1007 1008static void 1009mptfc_init_host_attr(MPT_ADAPTER *ioc,int portnum) 1010{ 1011 unsigned class = 0; 1012 unsigned cos = 0; 1013 unsigned speed; 1014 unsigned port_type; 1015 unsigned port_state; 1016 FCPortPage0_t *pp0; 1017 struct Scsi_Host *sh; 1018 char *sn; 1019 1020 /* don't know what to do as only one scsi (fc) host was allocated */ 1021 if (portnum != 0) 1022 return; 1023 1024 pp0 = &ioc->fc_port_page0[portnum]; 1025 sh = ioc->sh; 1026 1027 sn = fc_host_symbolic_name(sh); 1028 snprintf(sn, FC_SYMBOLIC_NAME_SIZE, "%s %s%08xh", 1029 ioc->prod_name, 1030 MPT_FW_REV_MAGIC_ID_STRING, 1031 ioc->facts.FWVersion.Word); 1032 1033 fc_host_tgtid_bind_type(sh) = FC_TGTID_BIND_BY_WWPN; 1034 1035 fc_host_maxframe_size(sh) = pp0->MaxFrameSize; 1036 1037 fc_host_node_name(sh) = 1038 (u64)pp0->WWNN.High << 32 | (u64)pp0->WWNN.Low; 1039 1040 fc_host_port_name(sh) = 1041 (u64)pp0->WWPN.High << 32 | (u64)pp0->WWPN.Low; 1042 1043 fc_host_port_id(sh) = pp0->PortIdentifier; 1044 1045 class = pp0->SupportedServiceClass; 1046 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_1) 1047 cos |= FC_COS_CLASS1; 1048 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_2) 1049 cos |= FC_COS_CLASS2; 1050 if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_3) 1051 cos |= FC_COS_CLASS3; 1052 fc_host_supported_classes(sh) = cos; 1053 1054 if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT) 1055 speed = FC_PORTSPEED_1GBIT; 1056 else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT) 1057 speed = FC_PORTSPEED_2GBIT; 1058 else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT) 1059 speed = FC_PORTSPEED_4GBIT; 1060 else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_10GBIT) 1061 speed = FC_PORTSPEED_10GBIT; 1062 else 1063 speed = FC_PORTSPEED_UNKNOWN; 1064 fc_host_speed(sh) = speed; 1065 1066 speed = 0; 1067 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_1GBIT_SPEED) 1068 speed |= FC_PORTSPEED_1GBIT; 1069 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_2GBIT_SPEED) 1070 speed |= FC_PORTSPEED_2GBIT; 1071 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_4GBIT_SPEED) 1072 speed |= FC_PORTSPEED_4GBIT; 1073 if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_10GBIT_SPEED) 1074 speed |= FC_PORTSPEED_10GBIT; 1075 fc_host_supported_speeds(sh) = speed; 1076 1077 port_state = FC_PORTSTATE_UNKNOWN; 1078 if (pp0->PortState == MPI_FCPORTPAGE0_PORTSTATE_ONLINE) 1079 port_state = FC_PORTSTATE_ONLINE; 1080 else if (pp0->PortState == MPI_FCPORTPAGE0_PORTSTATE_OFFLINE) 1081 port_state = FC_PORTSTATE_LINKDOWN; 1082 fc_host_port_state(sh) = port_state; 1083 1084 port_type = FC_PORTTYPE_UNKNOWN; 1085 if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_POINT_TO_POINT) 1086 port_type = FC_PORTTYPE_PTP; 1087 else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_PRIVATE_LOOP) 1088 port_type = FC_PORTTYPE_LPORT; 1089 else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_PUBLIC_LOOP) 1090 port_type = FC_PORTTYPE_NLPORT; 1091 else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_FABRIC_DIRECT) 1092 port_type = FC_PORTTYPE_NPORT; 1093 fc_host_port_type(sh) = port_type; 1094 1095 fc_host_fabric_name(sh) = 1096 (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_FABRIC_WWN_VALID) ? 1097 (u64) pp0->FabricWWNN.High << 32 | (u64) pp0->FabricWWPN.Low : 1098 (u64)pp0->WWNN.High << 32 | (u64)pp0->WWNN.Low; 1099 1100} 1101 1102static void 1103mptfc_link_status_change(struct work_struct *work) 1104{ 1105 MPT_ADAPTER *ioc = 1106 container_of(work, MPT_ADAPTER, fc_rescan_work); 1107 int ii; 1108 1109 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) 1110 (void) mptfc_GetFcPortPage0(ioc, ii); 1111 1112} 1113 1114static void 1115mptfc_setup_reset(struct work_struct *work) 1116{ 1117 MPT_ADAPTER *ioc = 1118 container_of(work, MPT_ADAPTER, fc_setup_reset_work); 1119 u64 pn; 1120 struct mptfc_rport_info *ri; 1121 struct scsi_target *starget; 1122 VirtTarget *vtarget; 1123 1124 /* reset about to happen, delete (block) all rports */ 1125 list_for_each_entry(ri, &ioc->fc_rports, list) { 1126 if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) { 1127 ri->flags &= ~MPT_RPORT_INFO_FLAGS_REGISTERED; 1128 fc_remote_port_delete(ri->rport); /* won't sleep */ 1129 ri->rport = NULL; 1130 starget = ri->starget; 1131 if (starget) { 1132 vtarget = starget->hostdata; 1133 if (vtarget) 1134 vtarget->deleted = 1; 1135 } 1136 1137 pn = (u64)ri->pg0.WWPN.High << 32 | 1138 (u64)ri->pg0.WWPN.Low; 1139 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT 1140 "mptfc_setup_reset.%d: %llx deleted\n", 1141 ioc->name, 1142 ioc->sh->host_no, 1143 (unsigned long long)pn)); 1144 } 1145 } 1146} 1147 1148static void 1149mptfc_rescan_devices(struct work_struct *work) 1150{ 1151 MPT_ADAPTER *ioc = 1152 container_of(work, MPT_ADAPTER, fc_rescan_work); 1153 int ii; 1154 u64 pn; 1155 struct mptfc_rport_info *ri; 1156 struct scsi_target *starget; 1157 VirtTarget *vtarget; 1158 1159 /* start by tagging all ports as missing */ 1160 list_for_each_entry(ri, &ioc->fc_rports, list) { 1161 if (ri->flags & MPT_RPORT_INFO_FLAGS_REGISTERED) { 1162 ri->flags |= MPT_RPORT_INFO_FLAGS_MISSING; 1163 } 1164 } 1165 1166 /* 1167 * now rescan devices known to adapter, 1168 * will reregister existing rports 1169 */ 1170 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) { 1171 (void) mptfc_GetFcPortPage0(ioc, ii); 1172 mptfc_init_host_attr(ioc, ii); /* refresh */ 1173 mptfc_GetFcDevPage0(ioc, ii, mptfc_register_dev); 1174 } 1175 1176 /* delete devices still missing */ 1177 list_for_each_entry(ri, &ioc->fc_rports, list) { 1178 /* if newly missing, delete it */ 1179 if (ri->flags & MPT_RPORT_INFO_FLAGS_MISSING) { 1180 1181 ri->flags &= ~(MPT_RPORT_INFO_FLAGS_REGISTERED| 1182 MPT_RPORT_INFO_FLAGS_MISSING); 1183 fc_remote_port_delete(ri->rport); /* won't sleep */ 1184 ri->rport = NULL; 1185 starget = ri->starget; 1186 if (starget) { 1187 vtarget = starget->hostdata; 1188 if (vtarget) 1189 vtarget->deleted = 1; 1190 } 1191 1192 pn = (u64)ri->pg0.WWPN.High << 32 | 1193 (u64)ri->pg0.WWPN.Low; 1194 dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT 1195 "mptfc_rescan.%d: %llx deleted\n", 1196 ioc->name, 1197 ioc->sh->host_no, 1198 (unsigned long long)pn)); 1199 } 1200 } 1201} 1202 1203static int 1204mptfc_probe(struct pci_dev *pdev, const struct pci_device_id *id) 1205{ 1206 struct Scsi_Host *sh; 1207 MPT_SCSI_HOST *hd; 1208 MPT_ADAPTER *ioc; 1209 unsigned long flags; 1210 int ii; 1211 int numSGE = 0; 1212 int scale; 1213 int ioc_cap; 1214 int error=0; 1215 int r; 1216 1217 if ((r = mpt_attach(pdev,id)) != 0) 1218 return r; 1219 1220 ioc = pci_get_drvdata(pdev); 1221 ioc->DoneCtx = mptfcDoneCtx; 1222 ioc->TaskCtx = mptfcTaskCtx; 1223 ioc->InternalCtx = mptfcInternalCtx; 1224 1225 /* Added sanity check on readiness of the MPT adapter. 1226 */ 1227 if (ioc->last_state != MPI_IOC_STATE_OPERATIONAL) { 1228 printk(MYIOC_s_WARN_FMT 1229 "Skipping because it's not operational!\n", 1230 ioc->name); 1231 error = -ENODEV; 1232 goto out_mptfc_probe; 1233 } 1234 1235 if (!ioc->active) { 1236 printk(MYIOC_s_WARN_FMT "Skipping because it's disabled!\n", 1237 ioc->name); 1238 error = -ENODEV; 1239 goto out_mptfc_probe; 1240 } 1241 1242 /* Sanity check - ensure at least 1 port is INITIATOR capable 1243 */ 1244 ioc_cap = 0; 1245 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) { 1246 if (ioc->pfacts[ii].ProtocolFlags & 1247 MPI_PORTFACTS_PROTOCOL_INITIATOR) 1248 ioc_cap ++; 1249 } 1250 1251 if (!ioc_cap) { 1252 printk(MYIOC_s_WARN_FMT 1253 "Skipping ioc=%p because SCSI Initiator mode is NOT enabled!\n", 1254 ioc->name, ioc); 1255 return 0; 1256 } 1257 1258 sh = scsi_host_alloc(&mptfc_driver_template, sizeof(MPT_SCSI_HOST)); 1259 1260 if (!sh) { 1261 printk(MYIOC_s_WARN_FMT 1262 "Unable to register controller with SCSI subsystem\n", 1263 ioc->name); 1264 error = -1; 1265 goto out_mptfc_probe; 1266 } 1267 1268 spin_lock_init(&ioc->fc_rescan_work_lock); 1269 INIT_WORK(&ioc->fc_rescan_work, mptfc_rescan_devices); 1270 INIT_WORK(&ioc->fc_setup_reset_work, mptfc_setup_reset); 1271 INIT_WORK(&ioc->fc_lsc_work, mptfc_link_status_change); 1272 1273 spin_lock_irqsave(&ioc->FreeQlock, flags); 1274 1275 /* Attach the SCSI Host to the IOC structure 1276 */ 1277 ioc->sh = sh; 1278 1279 sh->io_port = 0; 1280 sh->n_io_port = 0; 1281 sh->irq = 0; 1282 1283 /* set 16 byte cdb's */ 1284 sh->max_cmd_len = 16; 1285 1286 sh->max_id = ioc->pfacts->MaxDevices; 1287 sh->max_lun = max_lun; 1288 1289 /* Required entry. 1290 */ 1291 sh->unique_id = ioc->id; 1292 1293 /* Verify that we won't exceed the maximum 1294 * number of chain buffers 1295 * We can optimize: ZZ = req_sz/sizeof(SGE) 1296 * For 32bit SGE's: 1297 * numSGE = 1 + (ZZ-1)*(maxChain -1) + ZZ 1298 * + (req_sz - 64)/sizeof(SGE) 1299 * A slightly different algorithm is required for 1300 * 64bit SGEs. 1301 */ 1302 scale = ioc->req_sz/ioc->SGE_size; 1303 if (ioc->sg_addr_size == sizeof(u64)) { 1304 numSGE = (scale - 1) * 1305 (ioc->facts.MaxChainDepth-1) + scale + 1306 (ioc->req_sz - 60) / ioc->SGE_size; 1307 } else { 1308 numSGE = 1 + (scale - 1) * 1309 (ioc->facts.MaxChainDepth-1) + scale + 1310 (ioc->req_sz - 64) / ioc->SGE_size; 1311 } 1312 1313 if (numSGE < sh->sg_tablesize) { 1314 /* Reset this value */ 1315 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT 1316 "Resetting sg_tablesize to %d from %d\n", 1317 ioc->name, numSGE, sh->sg_tablesize)); 1318 sh->sg_tablesize = numSGE; 1319 } 1320 1321 spin_unlock_irqrestore(&ioc->FreeQlock, flags); 1322 1323 hd = shost_priv(sh); 1324 hd->ioc = ioc; 1325 1326 /* SCSI needs scsi_cmnd lookup table! 1327 * (with size equal to req_depth*PtrSz!) 1328 */ 1329 ioc->ScsiLookup = kcalloc(ioc->req_depth, sizeof(void *), GFP_KERNEL); 1330 if (!ioc->ScsiLookup) { 1331 error = -ENOMEM; 1332 goto out_mptfc_probe; 1333 } 1334 spin_lock_init(&ioc->scsi_lookup_lock); 1335 1336 dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "ScsiLookup @ %p\n", 1337 ioc->name, ioc->ScsiLookup)); 1338 1339 hd->last_queue_full = 0; 1340 1341 sh->transportt = mptfc_transport_template; 1342 error = scsi_add_host (sh, &ioc->pcidev->dev); 1343 if(error) { 1344 dprintk(ioc, printk(MYIOC_s_ERR_FMT 1345 "scsi_add_host failed\n", ioc->name)); 1346 goto out_mptfc_probe; 1347 } 1348 1349 /* initialize workqueue */ 1350 1351 snprintf(ioc->fc_rescan_work_q_name, sizeof(ioc->fc_rescan_work_q_name), 1352 "mptfc_wq_%d", sh->host_no); 1353 ioc->fc_rescan_work_q = 1354 alloc_ordered_workqueue(ioc->fc_rescan_work_q_name, 1355 WQ_MEM_RECLAIM); 1356 if (!ioc->fc_rescan_work_q) { 1357 error = -ENOMEM; 1358 goto out_mptfc_host; 1359 } 1360 1361 /* 1362 * Pre-fetch FC port WWN and stuff... 1363 * (FCPortPage0_t stuff) 1364 */ 1365 for (ii=0; ii < ioc->facts.NumberOfPorts; ii++) { 1366 (void) mptfc_GetFcPortPage0(ioc, ii); 1367 } 1368 mptfc_SetFcPortPage1_defaults(ioc); 1369 1370 /* 1371 * scan for rports - 1372 * by doing it via the workqueue, some locking is eliminated 1373 */ 1374 1375 queue_work(ioc->fc_rescan_work_q, &ioc->fc_rescan_work); 1376 flush_workqueue(ioc->fc_rescan_work_q); 1377 1378 return 0; 1379 1380out_mptfc_host: 1381 scsi_remove_host(sh); 1382 1383out_mptfc_probe: 1384 1385 mptscsih_remove(pdev); 1386 return error; 1387} 1388 1389static struct pci_driver mptfc_driver = { 1390 .name = "mptfc", 1391 .id_table = mptfc_pci_table, 1392 .probe = mptfc_probe, 1393 .remove = mptfc_remove, 1394 .shutdown = mptscsih_shutdown, 1395#ifdef CONFIG_PM 1396 .suspend = mptscsih_suspend, 1397 .resume = mptscsih_resume, 1398#endif 1399}; 1400 1401static int 1402mptfc_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply) 1403{ 1404 u8 event = le32_to_cpu(pEvReply->Event) & 0xFF; 1405 unsigned long flags; 1406 int rc=1; 1407 1408 if (ioc->bus_type != FC) 1409 return 0; 1410 1411 devtverboseprintk(ioc, printk(MYIOC_s_DEBUG_FMT "MPT event (=%02Xh) routed to SCSI host driver!\n", 1412 ioc->name, event)); 1413 1414 if (ioc->sh == NULL || shost_priv(ioc->sh) == NULL) 1415 return 1; 1416 1417 switch (event) { 1418 case MPI_EVENT_RESCAN: 1419 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); 1420 if (ioc->fc_rescan_work_q) { 1421 queue_work(ioc->fc_rescan_work_q, 1422 &ioc->fc_rescan_work); 1423 } 1424 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); 1425 break; 1426 case MPI_EVENT_LINK_STATUS_CHANGE: 1427 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); 1428 if (ioc->fc_rescan_work_q) { 1429 queue_work(ioc->fc_rescan_work_q, 1430 &ioc->fc_lsc_work); 1431 } 1432 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); 1433 break; 1434 default: 1435 rc = mptscsih_event_process(ioc,pEvReply); 1436 break; 1437 } 1438 return rc; 1439} 1440 1441static int 1442mptfc_ioc_reset(MPT_ADAPTER *ioc, int reset_phase) 1443{ 1444 int rc; 1445 unsigned long flags; 1446 1447 rc = mptscsih_ioc_reset(ioc,reset_phase); 1448 if ((ioc->bus_type != FC) || (!rc)) 1449 return rc; 1450 1451 1452 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT 1453 ": IOC %s_reset routed to FC host driver!\n",ioc->name, 1454 reset_phase==MPT_IOC_SETUP_RESET ? "setup" : ( 1455 reset_phase==MPT_IOC_PRE_RESET ? "pre" : "post"))); 1456 1457 if (reset_phase == MPT_IOC_SETUP_RESET) { 1458 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); 1459 if (ioc->fc_rescan_work_q) { 1460 queue_work(ioc->fc_rescan_work_q, 1461 &ioc->fc_setup_reset_work); 1462 } 1463 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); 1464 } 1465 1466 else if (reset_phase == MPT_IOC_PRE_RESET) { 1467 } 1468 1469 else { /* MPT_IOC_POST_RESET */ 1470 mptfc_SetFcPortPage1_defaults(ioc); 1471 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); 1472 if (ioc->fc_rescan_work_q) { 1473 queue_work(ioc->fc_rescan_work_q, 1474 &ioc->fc_rescan_work); 1475 } 1476 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); 1477 } 1478 return 1; 1479} 1480 1481/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1482/** 1483 * mptfc_init - Register MPT adapter(s) as SCSI host(s) with SCSI mid-layer. 1484 * 1485 * Returns 0 for success, non-zero for failure. 1486 */ 1487static int __init 1488mptfc_init(void) 1489{ 1490 int error; 1491 1492 show_mptmod_ver(my_NAME, my_VERSION); 1493 1494 /* sanity check module parameters */ 1495 if (mptfc_dev_loss_tmo <= 0) 1496 mptfc_dev_loss_tmo = MPTFC_DEV_LOSS_TMO; 1497 1498 mptfc_transport_template = 1499 fc_attach_transport(&mptfc_transport_functions); 1500 1501 if (!mptfc_transport_template) 1502 return -ENODEV; 1503 1504 mptfcDoneCtx = mpt_register(mptscsih_io_done, MPTFC_DRIVER, 1505 "mptscsih_scandv_complete"); 1506 mptfcTaskCtx = mpt_register(mptscsih_taskmgmt_complete, MPTFC_DRIVER, 1507 "mptscsih_scandv_complete"); 1508 mptfcInternalCtx = mpt_register(mptscsih_scandv_complete, MPTFC_DRIVER, 1509 "mptscsih_scandv_complete"); 1510 1511 mpt_event_register(mptfcDoneCtx, mptfc_event_process); 1512 mpt_reset_register(mptfcDoneCtx, mptfc_ioc_reset); 1513 1514 error = pci_register_driver(&mptfc_driver); 1515 if (error) 1516 fc_release_transport(mptfc_transport_template); 1517 1518 return error; 1519} 1520 1521/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1522/** 1523 * mptfc_remove - Remove fc infrastructure for devices 1524 * @pdev: Pointer to pci_dev structure 1525 * 1526 */ 1527static void mptfc_remove(struct pci_dev *pdev) 1528{ 1529 MPT_ADAPTER *ioc = pci_get_drvdata(pdev); 1530 struct mptfc_rport_info *p, *n; 1531 struct workqueue_struct *work_q; 1532 unsigned long flags; 1533 int ii; 1534 1535 /* destroy workqueue */ 1536 if ((work_q=ioc->fc_rescan_work_q)) { 1537 spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags); 1538 ioc->fc_rescan_work_q = NULL; 1539 spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags); 1540 destroy_workqueue(work_q); 1541 } 1542 1543 fc_remove_host(ioc->sh); 1544 1545 list_for_each_entry_safe(p, n, &ioc->fc_rports, list) { 1546 list_del(&p->list); 1547 kfree(p); 1548 } 1549 1550 for (ii=0; ii<ioc->facts.NumberOfPorts; ii++) { 1551 if (ioc->fc_data.fc_port_page1[ii].data) { 1552 dma_free_coherent(&ioc->pcidev->dev, 1553 ioc->fc_data.fc_port_page1[ii].pg_sz, 1554 ioc->fc_data.fc_port_page1[ii].data, 1555 ioc->fc_data.fc_port_page1[ii].dma); 1556 ioc->fc_data.fc_port_page1[ii].data = NULL; 1557 } 1558 } 1559 1560 scsi_remove_host(ioc->sh); 1561 1562 mptscsih_remove(pdev); 1563} 1564 1565/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1566/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ 1567/** 1568 * mptfc_exit - Unregisters MPT adapter(s) 1569 * 1570 */ 1571static void __exit 1572mptfc_exit(void) 1573{ 1574 pci_unregister_driver(&mptfc_driver); 1575 fc_release_transport(mptfc_transport_template); 1576 1577 mpt_reset_deregister(mptfcDoneCtx); 1578 mpt_event_deregister(mptfcDoneCtx); 1579 1580 mpt_deregister(mptfcInternalCtx); 1581 mpt_deregister(mptfcTaskCtx); 1582 mpt_deregister(mptfcDoneCtx); 1583} 1584 1585module_init(mptfc_init); 1586module_exit(mptfc_exit); 1587